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Commit 4beb6d9f authored by Thomas Hellstrom's avatar Thomas Hellstrom
Browse files

drm: Add a function to get the ioctl flags 



Signed-off-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: default avatarBrian Paul <brianp@vmware.com>
parent c996fd0b

drivers/gpu/drm/drm_drv.c

+18 −0
Original line number Diff line number Diff line
@@ -450,3 +450,21 @@ long drm_ioctl(struct file *filp, 
	return retcode;

}

EXPORT_SYMBOL(drm_ioctl);



/**

 * drm_ioctl_flags - Check for core ioctl and return ioctl permission flags

 *

 * @nr: Ioctl number.

 * @flags: Where to return the ioctl permission flags

 */

bool drm_ioctl_flags(unsigned int nr, unsigned int *flags)

{

	if ((nr >= DRM_COMMAND_END && nr < DRM_CORE_IOCTL_COUNT) ||

	    (nr < DRM_COMMAND_BASE)) {

		*flags = drm_ioctls[nr].flags;

		return true;

	}



	return false;

}

EXPORT_SYMBOL(drm_ioctl_flags);

include/drm/drmP.h

+1 −0
Original line number Diff line number Diff line
@@ -1229,6 +1229,7 @@ extern long drm_ioctl(struct file *filp, 
extern long drm_compat_ioctl(struct file *filp,

			     unsigned int cmd, unsigned long arg);

extern int drm_lastclose(struct drm_device *dev);

extern bool drm_ioctl_flags(unsigned int nr, unsigned int *flags);



				/* Device support (drm_fops.h) */

extern struct mutex drm_global_mutex;